Quick reference (1.0)
S
UPERMICR
R
ContaCt InformatIon
• Manuals:http://www.supermicro.com/support/manuals
• Drivers&Utilities:ftp://ftp.supermicro.com/CDR_Images/CDR-A1-UP/
• Safety:http://www.supermicro.com/about/policies/safety_information.cfm
© 2014 Supermicro Computer Inc. All rights reserved. Reproduction of this document whether in part or in whole is strictly prohibited without Supermicro's written
consent. All Trademarks are property of their respective entities. All information provided is deemed accurate at the time of printing; however, it is not guaranteed.
a1Sa7-2750/2550f
QuICk referenCe GuIde 1.0
MNL-1616-QRG
• Website:www.supermicro.com
• GeneralInformation:marketing@supermicro.com
• TechnicalSupport:support@supermicro.com
• Phone:+1(408)503-8000,Fax:+1(408)503-8008
for your SyStem to work properly, pleaSe download approprIate
drIverS/ImaGeS/uSer'S manual from the lInkS below:
MNL-1616 -QRG
Connector Item # Description
Battery (JBAT1) 18 Onboard Battery
COM1 32 COM1 Header
FAN1-FAN7 23, 22, 21, 20
19, 14, 15
CPU/System Cooling Fans
IPMI_LAN 5 IPMI Dedicated LAN
J3 27 Motherboard 5V Standby Power Input
JF1 24 Front Panel Control Header
JIPMB1 13 4-pin External SMbus I
2
C Header (for an IPMI Card)
JL1 16 Chassis Intrusion Header
JOH1 17 Overheat/Fan Fail LED Header
JP1 25 HDD Backplane Power Control header
JPI
2
C1 28 Power Supply System Management Bus (SMBus) I
2
C
Header
JPWR1 29 +12V 8-pin Motherboard Power connector
JSD1 34 SATA DOM (Device_On_Module) Power Connector
JTPM1 31 Trusted Platform Module (TPM)/Port 80 Connector
JUIDB1 8 Unit Identier (UID) Button
LAN1/LAN2 3, 4 Gigabit Ethernet (RJ45) Ports
L-SAS0 - L-SAS15
I-SATA0
12
35
LSI 2116 SAS Ports 0-15
Intel Serial ATA Port 0
PCI-E Slot 42 PCI-E Slot 2.0 x4 (x8)
SP1 44 Internal Speaker/Buzzer
SW1 7 Power Button
USB1/USB2 1, 2 Backpanel USB 2.0 Ports 1/2
USB 3 33 USB 2.0 Front Access Support/Type A Connector)
VGA 6 Backpanel VGA Port
J27 45 NC-SI header for AOC-STGN-i1SF 10GbE card
J28 46 Power to AOC-STGN-i1SF 10GbE card
Memory Support
1
1
DESIGNED IN USA
A1SA7-2550F
REV:1.01
BIOS LICENSE
BAR CODE
MAC CODE
BAR CODE
LSI 2116
BMC
AST2400
SLOT1 PCI-E 2.0 X4(IN x8)
COM1
J27
JIPMB1
JBAT1
J7
JF1
FAN7
FAN6
FAN2
FAN4
FAN5
FAN1
L-SAS15
L-SAS14
L-SAS9
L-SAS7
L-SAS5
L-SAS3
L-SAS1
L-SAS10
L-SAS8
L-SAS6
L-SAS4
L-SAS2
L-SAS0
L-SAS11
I-SATA0
L-SAS13
L-SAS12
JUIDB1
VGA
JTPM1
JSD1
JPG1
JWD1
JPL1
JI2C2
JI2C1
SP1
LED7
LED8
LED3
LED4
LED9
LED2
JBT1
JOH1
JL1
JRT3
JRT4
JPI2C1
IPMI_LAN
JP1
JPWR1
USB2
USB1
USB3
SW1
J3
FAN3
2
J28
CPU
X
ON
RST
PWR
OH/FF
JF1:
UID-LED
NIC2
USB1/0
DIMMA1 DIMMA2 DIMMB1 DIMMB2
LAN1
LAN2
UID-SW
NMI
LED
PWR
NIC1
HDD
LED
LED Indicators
Connectors
DIMM Memory Installation
Jumpers, Connectors and LED Indicators
Back Panel I/O Connectors
Motherboard Layout and Features
Jumpers
Note: Graphics shown in this quick reference guide are for illustration only. Your components may or may not look exactly the same as drawings shown in this guide.
Note: Refer to Chapter 1 of the User Manual for detailed information on jumpers, connectors,
and LED indicators.
Note: Refer to Chapter 2 of the User Manual for detailed information on memory support and CPU/
motherboard installation instructions.
= mounting hole
Front Panel Control (JF1)
1
5
1
9
1
14
1
10
1
15
1
4
1
8
1
13
1
3
1
7
1
12
1
17
1
18
1
19
1
20
1
2
1
6
1
11
1
16
1
21
1
26
1
31
1
36
1
41
1
37
1
42
1
43
1
44
1
38
1
39
1
40
1
32
1
33
1
34
1
35
1
27
1
28
1
29
1
30
1
22
1
23
1
24
1
25
1
1
Note: Item numbers are in counterclockwise order
Jumper Item # Description Default
JBT1 30 CMOS Clear Open: Normal Operation, Short: Clear CMOS
JI
2
C1/JI
2
C2 40, 41 SMB to PCI-Exp. Slots Off (Disabled)
JPG1 11 VGA Enable Pins 1-2 (Enabled)
JPL1 36 Ethernet LAN Ports Enable Pins 1-2 (Enabled)
JWD1 43 Watch Dog Enable Pins 1-2 (Reset)
LED Item # Description Color/State Status
LED2 37 BMC Heartbeat LED Green: Blinking BMC: Normal
LED3 39 LSISAS2116 Heartbeat LED Green: Blinking SAS Controller: Normal
LED4 26 Power LED Green: On System Power On
LED7 9 UID Switch LED Blue: On Unit Identied
LED8 10 Overheat/PWR Fail/Fan Fail
LED
Red: Solid on/Blinking Solid On: Overheat,
Blinking: PWR Fail or
Fan Fail
LED9 38 LSISA2116 Error LED Red: On LSISAS2116 Error Status
A
C
B
E
F
D
G
Backplane I/O Panel
A. USB Port 1 E. IPMI LAN
B. USB Port 2 F. VGA
C. LAN Port 1 G. Power Button
D. LAN Port 2 H. UID Switch
Power Button
OH/Fan Fail
1
NIC2 Link LED
Reset Button
2
HDD LED
FP PWR LED
Reset
PWR
3.3 V
3.3V Stby
Ground
Ground
1920
X
Ground
NMI
X
NIC1 Link LED
3.3V Stby
3.3V Stby
UID LED
3.3V
PWR Fail
The A1SA7-2750/2550F motherboard supports up to 64GB of DDR3 ECC or Non-
ECC Unbuffered (UDIMM) 1600/1333 MHz in x8 data width only, in 4 memory slots.
Populating these DIMM modules with a pair of memory modules of the same type
and same size will result in better memory performance.
Module Notches
2
H
Towards the edge of motherboard
Memory Population Guidelines
When installing memory modules, the DIMM slots should be populated in the fol-
lowing order: DIMMA1, DIMMB1, then DIMMA2, DIMMB2.
• Always use DDR3 DIMM modules of the same size, type and speed.
• The motherboard will support one DIMM module or three DIMM modules in-
stalled. However for best memory performance, install DIMM modules in pairs.
• Be sure to use memory modules of the same type, same speed, and same
frequency on the same motherboard. Mixing of memory modules of different
types and speeds is not allowed.
Recommended Population (Balanced)
DIMMA1 Slot DIMMB1 Slot DIMMA2 Slot DIMMB2 Slot Total System Memory
4GB 4GB 8GB
4GB 4GB 4GB 4GB 16GB
8GB 8GB 16GB
8GB 8GB 8GB 8GB 32GB
DIMMB2
DIMMA2
DIMMA1 (Blue Slot)
DIMMB1 (Blue Slot)
Socket Key
Module Key
1
3
4
5
1
45
1
46